United States Department of Agriculture
Natural Resources Conservation Service
West Central Glaciated Soil Survey Region #10 Go to Accessibility Information
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Welcome to the NRCS West Central Glaciated Soil Survey Region web site.

Thumbnail map of Soil Survey Region 10 MLRAs

Major Land Resource Areas (MLRAs)

MLRAs are geographically associated land resource units that share a common land use, elevation and topography, climate, water, soils, and vegetation. There are 208 of them in the U.S. and the Caribbean Area, ranging in size from 110 to 110,000 square miles. Sixteen of those are assigned to the MLRA Soil Survey Region 10 Office.

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'Soil Survey by Georaphic Area' document cover

Soil Survey by Geographic Area

This is the approach to soil survey adopted by NRCS in October 1995. The major change with this approach is that the soil survey area is now a geographic area with naturally occurring boundaries, rather than area with artificial boundaries (counties).

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Last Modified: January 17, 2007